CTV News - Top Stories Accuracy of pot impairment tests questioned ahead of legalization 2017-04-25T22:20:00.000000000-04:00 Blood tests for THC are less accurate than those measuring alcohol in impaired drivers, experts say, raising questions about how police will enforce stiff new penalties when the government legalizes marijuana. Canadian soldier dies in training accident, 3 others injured 2017-04-25T22:04:00.000000000-04:00 A training accident at Canadian Forces Base Wainwright in eastern Alberta has left one soldier dead and three others injured. Gaping sinkhole collapses road in Quebec town 2017-04-25T21:59:53.000000000-04:00 A massive sinkhole that swallowed a main road in a small Quebec town could take three months to repair. Vigil held for Edmonton toddler found dead near church 2017-04-25T21:35:00.000000000-04:00 Hundreds of mourners gathered Tuesday night for a vigil honouring the life of a toddler whose body was found near an Edmonton church last week. Exclusive: U.S. commerce secretary denies 'trade war' with Canada 2017-04-25T20:03:00.000000000-04:00 Trade tensions may appear to be escalating between Canada and the White House, but U.S. Secretary of Commerce Wilbur Ross denies that an all-out trade war is on the horizon. Swedish museum celebrates corporate failure 2017-04-25T19:42:00.000000000-04:00 From Harley Davidson-branded perfume to a lasagna produced by toothpaste maker Colgate, the corporate world is awash with ideas that fail to connect with consumers, and one museum curator hopes to inspire people with them. PTSD may have strong genetic link, study suggests 2017-04-25T16:57:00.000000000-04:00 Genetics may play a major role in how likely a person is to develop post-traumatic stress disorder after experiencing a traumatic event, according to a new U.S. study. Witness chokes back tears describing hit-and-run death at Calgary gas station 2017-04-25T16:16:30.000000000-04:00 A woman who witnessed the hit-and-run death of a Calgary gas station worker in 2015 choked back tears Tuesday as she described the incident. 'Smoking gun' telegram offers evidence of Armenian genocide: professor 2017-04-25T13:20:00.000000000-04:00 A Turkish historian has unearthed a 'smoking gun' telegram he says is evidence of an Armenian genocide during the First World War. Toronto subway riders, workers breathing air 10 times worse than outside: study 2017-04-25T13:04:31.000000000-04:00 The union representing Toronto subway workers is threatening legal action over newly published research that found pollution in the city’s underground transit network is 'comparable to a typical day in Beijing.'